JPS61114964A - Device for sorting discharged blank - Google Patents

Abstract

PURPOSE:To sort blanks by the number of copies orderly to be received in a discharged blank stacker in a copier or the like, by providing a shift means for displacing the position of blank in a discharged blank passage from a picture forming unit to the discharged blank stacker. CONSTITUTION:A page one blank discharged from a picture forming unit is once transferred onto a shift belt 33 by a transfer belt 27 and auxiliary belts 29, 31 and stopped. Under such a condition the shift belt 33 is rotated for a predetermined time and the blank abuts against a guide 25 for example and is received in a discharged blank stacker through a reversing passage by the reversal of belts 27, 29, 31. Also, on-and-after-page-two blanks are similarly received in said stacker so that a volume of blanks consisting of a plurality of pages biassed to one side is stacked. Next, a second volume of blanks is copied, while in this case the shift belt 33 is rotated to the guide 23 side so that the blank is biassed to the guide 23 side and received in said stacker.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to printing a series of sheets of paper, which are carried out from a printing and stroke forming device of a printer, facsimile, copying machine, printing machine, etc., every predetermined number of sheets. Alternatively, the ejection sheet classification for each page is related to the apparatus.

[Technical Background of the Invention] Generally speaking, in order to easily sort a series of sheets that are continuously delivered in this type of device, sheets are stacked and stored in different orientations for each number of copies on a sheet discharge stacker. It is known that this was done.

For example, a series of sheets with a predetermined number of pages and a series of sheets with the next number of copies are stacked in different positions to make it easier for the user to pick up the sheets one by one.

[Problems with background technology]

Conventionally, such an apparatus shifts the paper stacker between the right side position and the left side position at each division of the number of copies, or rotates the paper stacker at each division of the number of copies.

Therefore, the paper output stacker shifts with paper stacked on top of it, causing the stack of paper already stacked on it to collapse, making it difficult to distinguish between copies, and preventing it from fulfilling its original role. occurs frequently.

At the same time, since the stacker is moved from side to side or rotated with a large number of sheets loaded, the drive mechanism becomes large and must be constructed to be robust, which poses problems in terms of inertia during movement and equipment cost. arise. Furthermore, since the stacker that is touched by the user is moved, there is a drawback that it may lead to an unexpected accident.

[Purpose of the invention]

This invention is based on the idea of discharging and storing paper in different orientations in the paper discharging path before reaching the paper stacker.The device configuration is simple and the paper can be easily stored.

It is an object of the present invention to provide a device that can classify discharged sheets in a manner that allows them to be stored in a discharged sheet stacker in an orderly manner by number, and which does not cause a user to feel uneasy.

[Preliminary knowledge of invention]

In order to achieve the above object, the present invention provides a shift means for displacing the posture of the paper in the paper discharge path from the printing/image forming device to the paper discharge stacker, so that the paper is discharged in at least two different postures. It is designed to be stored in a paper stacker.

In other words, a series of sheets sent from a forming device such as an image, for example, a group of sheets constituting the first copy are each stored in a sheet discharge stacker by shifting the sheet posture by a shifting means.
The next group of sheets constituting the second set is stored in the paper stacker either in the same position as they were sent, or in a different position from the first set using the same shifting means, and this process is repeated until the sheets are ejected. The stacker is designed so that sheets can be stacked and accommodated by dividing them into sections according to the number of copies.

[Embodiments of the invention]

Hereinafter, a first example of the present invention will be explained with reference to the drawings.

As shown in FIG. 1, the printing, image, etc. forming device ζ1 is equipped with, for example, an electrostatic copying mechanism that forms an image on paper.
The image formed on drum 3H is transferred to paper P and fixed in printing S5.

On the forming device 1, there is a circulation feeding device 7 for the original (original).
is provided so that a series of originals are circulated between the platen 9 and the original platen 11 a number of times corresponding to the number of copies to be made, and then delivered under the belt. Note that 13 indicates a conveyor belt.

The paper P processed by such a forming device 1 is transferred to the paper ejection path 1.
5 and is housed in a paper discharge stacker 17. However, in the case shown in the figure, since the circulation feeding device 7 feeds the document from the first page, the copy of the first page is delivered upward from the forming device 1, and if it is stored in the paper output stacker 17 as it is, the pages will be stacked. goes crazy. Therefore, a reversing path 19 is provided so that the paper P is reversed from front to back at the paper ejection path 15.

The paper discharge path 15 is provided with a switchback path that includes a shift means 21 that can shift the paper P to two different positions.

The shift means 21 is constructed as shown in FIGS. 2 and 3. That is, a conveyor belt 27 and an auxiliary belt 29. which are rotatable in the conveyance direction are provided between the left and right guides 23,25.
31, a rotating body such as a shift belt 33 is provided as a shift means 21 which is rotatable in a direction perpendicular to the conveying direction.

In such a configuration, the operation will be described using an example in which a plurality of copies of a continuous page document are to be copied.

The first page of paper P that has been copied and discharged from the forming apparatus 1 is conveyed onto the shift belt 33 by the conveyor belt 27 and the auxiliary belts 29 and 31 of the sheet discharge path 15. Then, the conveyor belt 27 and the auxiliary belts 29, 31 stop.

In this state, the shift belt 33 rotates and shifts the paper P toward the guide 25, for example.

As a result, the side edge of the paper P comes into contact with the guide 25. After the shift belt 33 rotates and a predetermined period of time has elapsed, the shift belt 33 stops rotating, and the conveyor belt 27 and the auxiliary belts 29, 31 rotate in the opposite direction to switch back the paper P that has been brought to the guide 25 side and move the paper P toward the guide 25. Send it out along 25. Therefore, this paper P is stored in the paper discharge stacker 17 through the reversing path 19, and is moved toward the guide 25 side by the shift belt 33 and stored in the paper discharge stacker 17.

Therefore, in the paper discharge stacker 17, a set of sheets consisting of a plurality of pages are stacked and stacked on one side.

Next, a second copy is made, and in this case, when the copy paper P is supplied onto the shift belt 33, the shift belt 33 rotates toward the guide 23 and moves the paper P toward the guide 23.

Therefore, the sheets are stored in the discharge stacker 17 with a shift toward the front side compared to the first sheet that was stored earlier.

In this way, the paper output stacker 17 stores the odd numbered copies and the 1st part of the paper P.
The anomalous parts are collected in succession alternately.

Note that when sorting the paper P, it is not always necessary to shift the paper P to one side using the shift belt 33; for example, odd-numbered items may be discharged straight, and even-numbered items may be shifted to one side and carried out. Further, when there is no need to separate the paper P, it is ejected straight or sideways.

As described above, according to this embodiment, a shift belt 33 for shifting sheets left and right is provided in the sheet discharge path 15 between the forming device 1 and the sheet discharge stacker 17, and a series of sheets sent from the forming device 1 is For example, a group of sheets for preparing the first copy is stored in the paper discharge stacker 17 by shifting the paper posture with the shift belt 33, and a group of sheets constituting the next second copy is sent. Since the sheet is stored in the paper output stacker 17 either in the same position as it was, or in a different position than the first one, it is also displaced by the shift belt 33, so that by repeating this process, the sheet output stacker 17 is not moved from side to side. In this paper discharge stacker 17, sheets can be sorted by number of copies and stacked and stored in an orderly manner.

Therefore, the vibration of the paper discharge stacker is eliminated, and the stored paper P does not collapse or the separation between copies becomes unclear.

In addition, the shift belt 33 can separate and store multiple sheets of paper in the paper stacker 17 by simply moving one sheet of paper P from side to side. It does not require a large driving force or large mechanism to move or rotate the stacker from side to side.

Therefore, the structure is simple and compact, and the cost is low.

Furthermore, since the paper discharge stacker 17 does not move, there are no moving parts on the outside, so it is safe and does not give the user a sense of anxiety.

Next, regarding the second practical example of this invention, FIGS.
This will be explained with reference to the figures. Note that the same reference numerals are given to the parts as in the above-mentioned embodiment, and the explanation thereof will be omitted.

In this embodiment, instead of the shift belt 33, a cutout roller 35 having an arcuate portion 35A and a cutout portion 35B for moving the paper P left and right is provided, and when moving the paper P left and right, the cutout roller 35 moves the paper P to the left and right. A conveying force reinforcing member such as a plate 37 is provided to press the paper P fed onto the notch roller 35 against the notch roller 35 with a tentative 037, and at the same time press the paper P with the circular arc portion 35A of the notch roller 35. It is designed to move left and right.

In this implementation row, not only can the same effect as the first practical example be obtained, but also when the paper P is conveyed onto the cutout roller 35 and when the paper P is generally fed from the cutout roller 35, the cutout occurs. Since the cutout portion 35B can be made parallel to the paper P, the cutout roller 35 does not come into contact with the paper P, which facilitates conveyance.

Also, at least when moving the paper P left and right, the plate 3
Since the paper P is pressed against the cutout roller 35 at step 7, the paper P can be stably moved from side to side.

Next, a third embodiment of the present invention will be described with reference to FIGS. 6 and 7.

This embodiment shows an intermediate tray 43 with guides 39, 41.
An idle roller 45 is provided on the idle roller 45, and a shift roller 49 is provided on the idle roller 45, which rotates up and down via an arm 47 and also rotates in the forward and backward directions.
) 1 arm 51 is provided with a conveyance roller 513 that rotates forward and backward in the conveyance direction.

In such a configuration, the operation is as follows. That is, the conveyance roller 53 falls onto the conveyed paper P, and
The paper P is sent onto the idle roller 45. Then, as the conveyance roller 53 rises by 1, the shift roller 49 falls onto the paper P to move the paper left and right, and the shift roller 49 rises and the conveyance roller 53 falls to eject the paper P.

As described above, according to this embodiment, it goes without saying that the same effects as in the first embodiment can be obtained, but since the shift 1 roller 49 is raised when the paper P is loaded or unloaded, Carrying in is smooth, and the paper P is held down by the fallen shift roller 49 and transport roller 53 when the paper P is moved from side to side and carried in and out, so that the paper P can be moved and carried in reliably. .

Next, a fourth practical example of the present invention will be explained with reference to FIGS. 8 and 9.

This embodiment has an intermediate tray 6 which has guides 55, 57 on the left and right sides and lever grooves 59, 61, 63, 65.
7, and a shift lever 69 that is moved left and right by a solenoid or motor in the lever groove 59, 61, 63, 65.
, 71, 73, and 75 are provided, and the paper P transported by transport rollers 77, 79 is moved left and right by shift levers 69, 71, 73, and 75.

In this practical example, unlike the previous examples, the shift means is not a rotating body but shift levers 59, 61, 63, 65.
, the paper P can be moved from side to side more reliably.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 10 and 11.

In this embodiment, a rotary arm 83 that moves up and down and rotates by a predetermined angle is provided on the intermediate tray 81, and the conveyed paper P
It can be discharged as it is, or it can be discharged by lowering the rotary arm 83 and rotating it, for example, 90 degrees.

That is, in the previous embodiments, the paper P was moved left and right, but in this embodiment, the paper P is rotated and set in two different positions.

Therefore, the purpose is achieved by simply moving the rotary arm 83 up and down and rotating it, so the structure is simple and inexpensive.

Although five embodiments of the present invention have been described above, the present invention is not limited to these embodiments.

For example, in the above five actual examples, the paper P is displaced to one or two different positions by the shift means, but it may be displaced to three or more different positions.

Further, in the above practical example, the paper P displaced by the shift means is switched back and discharged, but it may be discharged in one direction without being switched back.

Furthermore, various combinations of the above embodiments are also possible.

〔Effect of the invention〕

As explained above, according to the present invention, a shift means for displacing the posture of paper is provided in the paper discharge path from the printing/image forming device to the paper discharge stacker, so that the paper can be moved in at least two different postures. Since the paper is stored in the paper stacker, the device has a simple configuration, and the paper can be neatly classified by number of copies and stored in the paper stacker, and the paper can be classified into paper sheets without causing anxiety to the user. You can get the equipment.

[Brief explanation of drawings]

1 to 3 are diagrams showing a first embodiment of this invention,
FIG. 1 is a schematic diagram showing the configuration of the entire device, FIG. 2 is a plan view of the vicinity of the shift means, and FIG. 3 is a sectional view thereof. 4 and 5 are a plan view and a sectional view of the periphery of the shifter means showing a second embodiment of the invention, FIGS. 6 and 7 are views showing a third embodiment, and FIG. 8 ) Figure 9 shows the fourth example of real power, Figures 10 and 11 show the fifth example.
It is a diagram showing an example of real power. 1... Formation device for printing, images, etc. 7... Circulation feeding device 15... Paper ejection path 1
7...Sheet discharge stacker 215ysee shift means 23.25...Guide 33 @@@@@Shift belt 3511111+11@Notched roller 37
m6*@@plate 39.41...Guide 4
5-----・Idle roller 49...・Meeting shift roller
55, 57...Guide 59, 61, 63.65...
...Lever groove 69, 71, 73.75--Axis shift lever 81...Rotating arm No. 2 flash d/ Jq JJ MJ Kuni, w,, yv bi: @+0 En procedure amendment document Showa tax 80 days a year

Claims (6)

[Claims] (1) In a device that stacks and accommodates a series of sheets discharged from a printing, image, etc. forming device in a sheet discharge stacker via a sheet discharge path, a shift means for displacing the posture of the sheets is provided in the sheet discharge path. . A discharged sheet sorting device, characterized in that sheets are accommodated in the discharged sheet stacker in at least two different orientations. (2) In the ejected paper sorting device according to claim 1, the shifting means is a rotary body that is disposed below the paper and is capable of laterally displacing the paper on the paper ejection path. A discharge paper sorting device characterized by: (3) In the ejected paper sorting device according to claim 1, the shift means is a rotary body that is disposed above the paper and is capable of laterally displacing the paper on the paper ejection path. A discharge paper sorting device characterized by: (4) The discharged paper sorting device according to claim 1, wherein the shift means is a slide lever capable of laterally displacing the paper on the paper discharge path. (5) In the ejected paper sorting device according to claim 1, the shifting means is a rotating body that rotates the paper on the ejecting path and displaces the position of the paper. Paper sorting device. (6) In the ejected sheet sorting device according to claim 1, a switchback path is provided in the sheet ejection path to reverse the direction in which the sheets advance, and a shift means for displacing the posture of the sheets is provided on the switchback path. A discharge paper sorting device characterized by being provided.